Touchscreen problems when plugged in

Has anyone else had problems with their Vita when plugged in for charging? I noticed it on mine about a week ago, when I was playing some Project Diva and the touch screen swipes weren't registering. At first I thought I was being a bit shit, but the problems were consisent and got worse, and screen navigation became nigh impossible. I was worried my Vita was broken, but then I found this issue, and it turns out it only happens when charging. It's a bit worrying, maybe my power cable is damaged.